Waltee eyee



(No Model.)

W. EYRE.

METHOD OF MAKING WHEELS.

No. 338,168. Patented Mar. 16,- 1886.

UNITED STATES PATENT OFFICE.

WALTER EYRE, OF 167 ELLESMERE ROAD, SHEFFIELD, COUNTY OF YORK, ENGLAND.

METHOD OF 'MAKING WHEELS.

SPECIFICATION forming part of Letters Patent No. 338,168, dated March 16. 1886.

Application filed June 4, 1885. Serial No.167,582. (No specimens.) Patented in England December 29, 1884, No. 16,985, and in Canada June 15, 1885, No. 21,886.

To aZZ whom it may concern:

Be it known that I, WALTER EYRE, of 167 Ellesmere Road, Sheffield, in the county of York, England, a subject of the Queen of Great Britain,haveinventednewandusefulImprovements in Railway and other Wheels, (for which I have obtained a patent in Great Britain, No. 16,985, dated December 29, 1884:, and Canadian Letters Patent No. 21,886,dated June 15, 1885,)

of which the following is a specification.

My invention relates to the construction of wheels for use on railways or for colliery, tram, and other vehicles, and has for its object the manufacture of a solid forged wheel,

1 in which the boss forms part of the wheel itself, such wheel being made from one piece of metal, which is at first hammered or pressed between dies into the form of a disk with a solid boss, and afterward bent or shaped by means of other dies into a complete wheel, the outer part of the disk forming the rim or wearing-surface. For this purpose I take a piece of iron or steel of the size required and forge it between dies into. the form of a flat disk, leaving the central part much thicker,

so as to form a boss on each side of the plate or disk. This flat disk is afterward bent or shaped by hammering or pressing between dies of suitable form,which dish it and flange it, bringing it into the form of the complete wheel, having the web portion suitably shaped to bring the entire load on the center of the boss. The process of manufacture thus consists of a series of successive stages of forging,

5 pressing, dishing, and fianging. The boring of the boss is a subsequent operation.

In the accompanying drawings, A, Figure 1, represents acylindrical piece of iron or steel of the required size out of which the wheel is 0 to be formed. Fig. 1* represents the form to which the piece is swaged to produce the protuberances for the boss. Fig. 2 shows the dies between which the body of the said piece of iron or steel between and around the said protuberances is forged into the form of a flat 4 5 disk, B, (shown at Fig. 3,) with the central part, O, of greater thickness to serve for the boss. Fig. 4 represents the dies in which the disk B is ultimately shaped into the web portion D and the rim E of the complete wheel, and Fig. 5 shows a section of the complete wheel.

The form of dies is varied to suit the kind of wheel to be produced, and the disk B may be made of various thicknesses and of an uneven thickness, so that a wheel may be made from it thicker or stronger in one part than another, if required. The thickness of the rim E may be varied or it may be of uneven thickness, as required.

The boring of the boss is effected after the wheel has been shaped as required in the second pair of dies, Fig. 4, and the wheel is then complete with its dished web D, rim E, and flange F, without requiring the addition 6 5 of a tire.

The dies employed would usually be made in two parts; but they may be composed of more parts, if necessary.

I claim as my invention and desire to secure by Letters Patent The within-described method of manufac turing iron or steel car-wheels,which consists, essentially, in the following steps: first, swaging down the ends of a cylindrical piece to 5 form the protuberances for the boss of the wheel; second, forging the body of the said piece between and around the said protuberances in dies into the form of a fiat disk, and, third, dishing and fianging the said disk, all as herein specified.

\VALTER EYRE.

Vitnesses:

G. B. HOBBIS, THOS. RENSHAW, Clerks to llIessrs. Bm'dekin ((7 C0., Solicitors,

Shefiield. 

